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Re: The gold linker is now in the base system

To: dragonflybsd@xxxxxxxxx
From: "Sascha Wildner" <saw@xxxxxxxxx>
Date: Wed, 18 May 2011 14:44:59 +0200

On Wed, 18 May 2011 08:26:09 +0200, John Marino <dragonflybsd@marino.st> wrote:

Today I flipped a switch a switch which allows the gold linker to be built with world. After the next build, you'll find it located at /usr/libexec/binutils221/elf/ld.gold .

It is considered experimental at this point. Users of large C++ projects should see a large jump in compiling speed when using gold (could be up to 5x faster), so if you are a frequent builder of such a project, you might be interested to switch linkers.

For additional information:
/usr/bin/ld is objformat-linked to /usr/libexec/binutils221/elf/ld
/usr/libexec/binutils221/elf/ld is hardlinked to /usr/libexec/binutils221/ld.bfd

Gold will NOT build a usable kernel or world. The only way to attempt this is to modify to the ld.bfd and ld.gold makefiles, so you luckily can't do this accidentally. Therefore, you should be safe if you decide to change the /usr/libexec/binutils221/elf/ld hardlink to gold.

It would be great to hear about successes and failures encountered with the use of the gold linker.

-- John


it seems to be only rtld-elf that has an issue when linked with gold (somewhere in rtld_start.S).

A gold linked chroot works fine (meaning, I can buildworld again successfully in it) when I replace its ld-elf.so.2 with one that is not linked with gold.



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